C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS43 KLOT 202022 WSWLOT URGENT - WINTER WEATHER MESSAGE National Weather Service Chicago IL 222 PM CST Tue Jan 20 2026 /O.EXT.KLOT.WW.Y.0004.260121T0200Z-260121T1400Z/ Winnebago-Boone-McHenry-Lake IL- Including the cities of Woodstock, Mundelein, Algonquin, Waukegan, Gurnee, Buffalo Grove, McHenry, Rockford, Belvidere, and Crystal Lake 222 PM CST Tue Jan 20 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 8 AM CST WEDNESDAY... * WHAT...Snow and hazardous travel conditions expected. Total snow accumulations between 3 and 5 inches. * WHERE...Boone, Winnebago, Lake IL, and McHenry Counties. * WHEN...From 8 PM this evening to 8 AM CST Wednesday. * IMPACTS...Plan on snow covered, slick road conditions, and periods of low visibility. The hazardous conditions will likely impact the Wednesday morning commute, especially in the northern Chicago metro area. * ADDITIONAL DETAILS...A heavier snow band is expected to develop late this evening into the overnight. If a long enough period of heavier rates occurs, localized snowfall amounts may reach upwards of 5 inches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for Illinois can be obtained at www.gettingaroundillinois.com. &&
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